Shuttle for looms.



UNITED STATES PATENT OFFICE.

JOSEPH P. COSTELLO, PHILADELPHIA. PENNSYLVANIA.

SHUTTLE FOR LOOMS.

Specification of Letters Patent.

Patented July 31. 1906.

Application filed June 28, 1905. Serial No. 267,394.

My invention relates to a new and usefiil' improvement in shuttles for looms, and has for its object to prodde a shuttle which instead of being made of wood is made of sheet metal, which will allow an increased-size bobbin to be held within and at the same time will prolong the life of the shuttle.

Another object of my invention is to provide an improved tension device which will be secured to the shuttle-covering strip instead of to the body of the shuttle itself.

With these ends in view this invention consists in the details of construction and combination of 'elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention ap ertains may understand how to make and use the same, the construction and o eration will now be described in detail, re erring to the accompanying drawings, forming a part of this specification, in wh1ch- Figure 1 is a shuttle; Fig. 2, a ongitudinal section t rough the shuttle with the coverin -stri attached thereto Fig. 3, a plan view 0 the lank from which the shuttle is made; Fig. 4, an under side plan view of the covering-strip with the tension device attached thereto.

Shuttles as now made consist of a block of wood hollowed out with a metal ti or point inserted at each end. These woo en shuttles may be reinforced underneath with metallic rounding strips to prolong the life of the shuttle; but the life of a wooden shuttle is necessarily very limited on account of the wearing away of the wood and the s lintering of the same, and besides the cost 0 manufacturing a wooden shuttle would be much more than a metal shuttle, for the wood shuttle must be reinforced with cross-pins and runners to prolong its life.

, My invention consists in taking a sheet of lan view of my improvedmetal and forming it into a blank, as represented at A in Fig. 3, the ends of the blank being notched, as represented at B, and the portions upon each side of the notches being so formed that when the metal blank is bent up in a trou h shape, so as to form the body of the shutt e, these notched ends may be all brought to ether and curved around a form, so that eac end of the shuttle will be cylindrical in shape, ta ering toward a point, but all the ends are rought together and brazed. Solid metallic cone-sha ed points C are inserted at the ends aroun which the metal is bent, and the separate edges of the metallic blank at the ends are brazed or otherwise secured together, and at the same time the solid metallic points C are also brazed or otherwise secured within the same. Thus it will be seen that a shuttle can be made of sheet metal with an outside contour the same as the wooden shuttle, and as the walls of this shuttle will be extremely thin compared with the walls of the wooden shuttle a much larger bobbin or cop can be inserted therein, and thus theshuttle can be used much longer than the wooden shuttle before insertin a new bobbin. V

I do not wis to be limited in an way to the slotting ornotchin of the en s of the blank to form the desire shape of the shuttle, for the blank can be so cut as to form whatever shape is most desirable for the particular loom in which the shuttle is designedto be used; but it would always be referable to have the ends of the shuttle cy 'ndrical and not open at the top, the same as the body of the shuttle, as this will give increased strength at the ends and also facilitate the insertion. of the covering-strip.

D is the eyelet formed throu h the bottom fore removable pivot-pins are provided running through the body of the shuttle, which in time become loosened by repeated removals and are apt to work out while the shuttle is operating.

In my device instead of pivoting the coyering-strip to the body of the shuttle I make it separate, as represented at E, each end being inserted underneath the overhanging inclosed ends of the shuttle-body, and depending from this covering-stri at one end are two ears F, which exten downward and rest upon the bottom of the shuttle, and extending between these two ears is a rod or roller G, against which the tension-lever H presses by means of the s ring I and interposed between the covering-strip and the pressure-lever H, said pressure-lever being also pivoted between the two ears F. The

thread J asses from the bobbin through an opening in the lever H and passes in between the rod or roller G and the end of the resser-lever H. In inserting the coveringstrip it is only'necessary to pass the end of the covering-strip which is nearest the tension device underneath the overhanging end. of the body and then press downward upon the other end of the covering-strip. The ears F,- resting upon the bottom of the body of the shuttle will form a fulcrum, and therefore it will be necessary to spring the longer end of the covering-stri downward, and when it is underneath or be ow the lower surface of the other end of the shuttle it is slid forward slightly until this end is directly underneath the overhang, and thus the covering-strip is held in position, as shown in Fig. 2.

In order to remove the covering-stri it is onl necessary to slide the same bac ward slig tly until the end is disengaged from the overhanging portion and it will then spring up and can be easily removed.

Having thus fully described my invention, what I claim as new arid useful is 1. A shuttle formed of sheet metal bent upward in the desired shape, the ends of the shuttle being cylindrical and ta ering and reinforced at each end with a so id point, that portion of the shuttle between the cylindrical ends being trough shape and open at the top, a coverin -strip ada ted to cover the open portion 0 the shutt e when the same is in use, said covering-strip adapted to fit between the sides of the shuttle, each end of the covering strip extending underneath the overhanging cylindrical portions at the ends,

and a tension device depending from the covering-strip and secured thereto, as specified.

2. A shuttle formed of sheet metal bent in the desired shape, overhanging portions formed at each end of the shuttle, a coveringstrip adapted to fit in between the sides of the shuttle, the ends of the covering-stri adapted to extend underneath the over anging portions, ears extending downward from the covering-strip near one end thereof and resting upon the bottom of the shuttle in such a manner as to form a fulcrum and cause the other end of the stri to have a tendency to spring upward, a ro extending between the two ears, a tension-leverresting upon said rod, a spring for forcing said tension a ainst the rod, as and for the purpose specific In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

JOSEPH P. COSTELLO.

Witnesses: u

MATILDA R. MCCRACKEN, GEORGE H. MOCRACKEN. 

